Funding for this research was provided by:
National Natural Science Foundation of China (81430025)
Swedish Research Council (K2015-61X-22297-03-4)
Text and Data Mining valid from 2018-06-30
Received: 2 March 2018
Accepted: 6 June 2018
First Online: 30 June 2018
Ethics approval and consent to participate
: All work involving animals was approved by the Ethical Committees for use of laboratory animals at Lund University, Sweden, and at Northeastern University, China.
: The authors declare that they have no competing interests.